Home / 20,533,762.80-28,339,125.24-11,715,385.20

Finding the Fourth Proportional to 20,533,762.80, 28,339,125.24 and 11,715,385.20

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Solution

The fourth proportional to 20,533,762.80, 28,339,125.24 and 11,715,385.20 is: 16,168,676.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,762.80 : 28,339,125.24 = 11,715,385.20 : x
  2. Step 2: Convert to fraction form
    20,533,762.80/28,339,125.24 = 11,715,385.20/x
  3. Step 3: Cross multiply
    20,533,762.80x = 28,339,125.24 × 11,715,385.20
  4. Step 4: Simplify right side
    20,533,762.80x = 332,003,768,417,642.44
  5. Step 5: Solve for x
    x = 332,003,768,417,642.44/20,533,762.80
  6. Step 6: Final answer
    x = 16,168,676.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.